From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org
X-Spam-Level: 
X-Spam-Status: No, score=-3.3 required=5.0 tests=MAILING_LIST_MULTI,
	RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL autolearn=ham
	autolearn_force=no version=3.4.4
Received: (qmail 18736 invoked from network); 6 Feb 2021 07:47:16 -0000
Received: from mother.openwall.net (195.42.179.200)
  by inbox.vuxu.org with ESMTPUTF8; 6 Feb 2021 07:47:16 -0000
Received: (qmail 20291 invoked by uid 550); 6 Feb 2021 07:47:09 -0000
Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm
Precedence: bulk
List-Post: <mailto:musl@lists.openwall.com>
List-Help: <mailto:musl-help@lists.openwall.com>
List-Unsubscribe: <mailto:musl-unsubscribe@lists.openwall.com>
List-Subscribe: <mailto:musl-subscribe@lists.openwall.com>
List-ID: <musl.lists.openwall.com>
Reply-To: musl@lists.openwall.com
Received: (qmail 20261 invoked from network); 6 Feb 2021 07:47:09 -0000
X-IronPort-AV: E=Sophos;i="5.81,157,1610406000"; 
   d="scan'208";a="372264930"
Date: Sat, 06 Feb 2021 08:46:56 +0100
Message-Id: <mw1rdtvdsf.fsf@tomate.loria.fr>
From: Paul Zimmermann <Paul.Zimmermann@inria.fr>
To: musl@lists.openwall.com
Subject: [musl] accuracy

       Hi,

with the two patches from Szabolcs on top of musl-1.2.2, I confirm the results
for acosh and sinh are back to normal for the whole binary32 range:

Checking function acosh with MPFR_RNDN
...
libm wrong by up to 2.01e+00 ulp(s) [2] for x=0x1.01cb98p+0
acoshf     gives 0x1.e4ce84p-4
mpfr_acosh gives 0x1.e4ce8p-4
Total: errors=295917691 (6.92%) errors2=2708 maxerr=2.01e+00 ulp(s)

Checking function sinh with MPFR_RNDN
...
libm wrong by up to 1.83e+00 ulp(s) [2] for x=0x1.783ab6p-1
sinhf     gives 0x1.9b038p-1
mpfr_sinh gives 0x1.9b0384p-1
Total: errors=72811936 (1.70%) errors2=31216 maxerr=1.83e+00 ulp(s)

Paul